DENVER—Kansas Gov. Kathleen Sebelius said Thursday it’s “quite flattering and a little surreal” to be mentioned as a potential running mate for Barack Obama, but she declined to say whether she would accept.

“The decision is his choice,” she said during a visit to Denver, where she will serve as co-chairwoman of the Democratic National Convention in August. “I’m sure he’ll make a great choice for the country.”

Obama has named three people—including Caroline Kennedy, daughter of the late President John F. Kennedy—to head his search for a running mate. Among others named as possible candidates are former Sens. John Edwards and Sam Nunn and Arizona Gov. Janet Napolitano.

Sebelius, a second-term governor of a predominantly Republican state, has endorsed Obama and campaigned for him in Ohio, where her father, John Gilligan, was governor from 1971-to 1975.

In Denver, Sebelius spoke to a breakfast hosted by the environmental legal group Earthjustice, saying she supports Obama’s proposal to commit $150 billion to alternative energy development.

“That’s the kind of commitment that will I think greatly accelerate our opportunity to shift from doing things the way we’ve always done them,” she said.

Sebelius said renewable energy will be a factor in the election nationwide and voiced skepticism about “clean coal technology.”

She said effective clean-coal technology is 10 to 15 years away and for the present is a “total myth.”

The 7,800-acre Winter Valley Fire in Moffat County was 100 percent contained Tuesday as visible smoke from interior islands showed minimal creeping behavior, according to the Bureau of Land Management.

Colorado Gov. John Hickenlooper said Tuesday that he respects the decision of Denver Broncos players on Sunday to protest President Donald Trump and that the president’s NFL criticism was a bid to “distract the country” from his policy failures.